Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By alkyl or aryl transfer between molecules – e.g.,...
Patent
1997-06-13
1999-08-24
Caldarola, Glenn
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By alkyl or aryl transfer between molecules, e.g.,...
585470, C07C 522
Patent
active
059426519
ABSTRACT:
A process for converting a heavy aromatics feed to lighter aromatic products, such as benzene and xylene, by reacting C.sub.9+ aromatic hydrocarbons and toluene or benzene under transalkylation reaction conditions, over a first catalyst composition including a zeolite having a constraint index ranging from 0.5 to 3 and a hydrogenation component and a second catalyst composition including an intermediate pore size zeolite having a constraint index ranging from 3 to 12 and a silica to alumina ratio of at least about 5, to produce a transalkylation reaction product containing benzene or toluene and xylene. The benzene or toluene from the reaction product can then be distilled to obtain a benzene or toluene product.
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Beech, Jr. James H.
Hellring Stuart Damon
Helton Terry Eugene
Kinn Timothy Frederick
Mizrahi Sadi
Caldarola Glenn
Dang Thuan D.
Keen Malcolm D.
Mobile Oil Corporation
Roberts Peter W.
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